Organic light emitting display apparatus
US9620737B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 4, 2016 |
| Grant date | Apr 11, 2017 |
| Priority date | — |
| Expiry date | Feb 4, 2036 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/879
Abstract
An organic light emitting display apparatus includes a substrate including a pixel region, a first electrode on the substrate, a second electrode on the first electrode, an organic light emission layer between the first and second electrodes to emit light, a plurality of layers on the second electrode, and a light compensation pattern on the second electrode and overlapping the pixel region, the light compensation pattern including a plurality of protrusion patterns having progressively decreasing widths as a distance from a center of the pixel region increases, and a plurality of grooves separating the protrusions in a direction parallel to the substrate from the center of the pixel region.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.